The principal development tool for the vehicle aerodynamicist continues be the full-scale wind tunnel In the absence of a reliable alternative it is expected that this will continue for many yearsAs a true simulation of conditions on the road, the conventional full-scale wind tunnel has limitations In most cases the ground is fixed relative to the vehicle allowing an unrepresentative boundary layer to develop, the wheels of the test vehicle do not rotate and there is some uncertainty over the influences imposed by the tunnel walls These factors are known to influence measured aerodynamic data.This paper describes a technique for the measurement of aerodynamic lift on the road Results for a medium-sized European passenger car are compared with measurements made in a traditional full-scale fixed ground wind tunnel While there was found to be reasonable agreement between the road and wind tunnel values of total lift, the distribution of lift between front and rear axles was noticeably different On the track more front lift and less rear lift were measured compared to the wind tunnelThe technique for measuring lift on the road was originally developed to help substantiate assumptions made in the comparison of track and wind tunnel derived aerodynamic drag data - the subject of a previously published paperIn their own right the results published in this paper contribute to the continuing investigation of the simulation problem within the automotive aerodynamics community particularly as there is little published data of road derived lift measurements for passenger cars


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    On-Road Measurements of Aerodynamic Lift Compared with Wind Tunnel Data


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Congress & Exposition ; 1996



    Publication date :

    1996-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    On-road measurements of aerodynamic lift compared with wind tunnel data

    Good,G.M.le / McArthur,A. / Austin Rover Group,GB | Automotive engineering | 1996


    On-road aerodynamic drag measurements compared with wind tunnel data

    LeGood,G.M. / Howell,J.P. / Passmore,M.A. et al. | Automotive engineering | 1995


    On-Road Aerodynamic Drag Measurements Compared with Wind Tunnel Data

    Le Good, G. M. / Howell, J. P. / Passmore, M. A. et al. | British Library Conference Proceedings | 1995


    On-Road Aerodynamic Drag Measurements Compared with Wind Tunnel Data

    Le Good, G. M. / Howell, J. P. / Garry, K. P. et al. | SAE Technical Papers | 1995


    Automobile Aerodynamic Drag on the Road Compared With Wind Tunnel Tests

    Morelli,A. / Nuccio,P. / Visconti,A. et al. | Automotive engineering | 1981